You are designing a steam power plant based on the rankine cycle, to deliver a net power output of 250 mw. the turbine inlet state is specified as 8 mpa and 500°c, and the pump inlet state is specified as saturated liquid at 20 kpa. the isentropic efficiency of the turbine is 90% and the pump is approximately isentropic. (a) sketch the layout of the plant and a t–s diagram for the cycle. (b) determine the thermal efficiency of the cycle. (c) determine the required mass flow rate of steam. (d) to reduce the cost of the boiler, it’s proposed to reduce boiler pressure to 6 mpa. the other information specified above will not change. sketch a new t–s diagram showing both the original and modified cycles. discuss the impact of the proposed change on the performance of the power plant.